Package com.facebook.nifty.server

Source Code of com.facebook.nifty.server.TestNiftyServer

/*
* Copyright (C) 2012-2013 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.facebook.nifty.server;

import com.facebook.nifty.client.FramedClientConnector;
import com.facebook.nifty.client.NiftyClient;
import com.facebook.nifty.core.NettyServerConfig;
import com.facebook.nifty.core.NettyServerTransport;
import com.facebook.nifty.core.RequestContext;
import com.facebook.nifty.core.RequestContexts;
import com.facebook.nifty.core.ThriftServerDefBuilder;
import com.facebook.nifty.test.LogEntry;
import com.facebook.nifty.test.ResultCode;
import com.facebook.nifty.test.scribe;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TTransport;
import org.apache.thrift.transport.TTransportException;
import org.jboss.netty.channel.group.DefaultChannelGroup;
import org.jboss.netty.logging.InternalLoggerFactory;
import org.jboss.netty.logging.Slf4JLoggerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import java.net.InetSocketAddress;
import java.util.Arrays;
import java.util.List;

public class TestNiftyServer
{
    private static final Logger log = LoggerFactory.getLogger(TestNiftyServer.class);
    private NettyServerTransport server;
    private int port;

    @BeforeMethod(alwaysRun = true)
    public void setup()
    {
        server = null;
        InternalLoggerFactory.setDefaultFactory(new Slf4JLoggerFactory());
    }

    @AfterMethod(alwaysRun = true)
    public void teardown()
            throws InterruptedException
    {
        if (server != null) {
            server.stop();
        }
    }
    private void startServer()
    {
        startServer(getThriftServerDefBuilder());
    }

    private void startServer(final ThriftServerDefBuilder thriftServerDefBuilder)
    {
        server = new NettyServerTransport(thriftServerDefBuilder.build(),
                                          NettyServerConfig.newBuilder().build(),
                                          new DefaultChannelGroup());
        server.start();
        port = ((InetSocketAddress)server.getServerChannel().getLocalAddress()).getPort();
    }

    private ThriftServerDefBuilder getThriftServerDefBuilder()
    {
        return new ThriftServerDefBuilder()
                .listen(0)
                .withProcessor(new scribe.Processor<>(new scribe.Iface() {
                    @Override
                    public ResultCode Log(List<LogEntry> messages)
                            throws TException
                    {
                        RequestContext context = RequestContexts.getCurrentContext();

                        for (LogEntry message : messages) {
                            log.info("[Client: {}] {}: {}",
                                    context.getConnectionContext().getRemoteAddress(),
                                    message.getCategory(),
                                    message.getMessage());
                        }
                        return ResultCode.OK;
                    }
                }));
    }

    private scribe.Client makeNiftyClient()
            throws TTransportException, InterruptedException
    {
        InetSocketAddress address = new InetSocketAddress("localhost", port);
        TTransport transport = new NiftyClient().connectSync(scribe.Client.class, new FramedClientConnector(address));
        TProtocol protocol = new TBinaryProtocol(transport);
        return new scribe.Client(protocol);
    }

    @Test
    public void testBasic() throws InterruptedException, TException
    {
        startServer();
        scribe.Client client1 = makeNiftyClient();
        Assert.assertEquals(client1.Log(Arrays.asList(new LogEntry("client1", "aaa"))), ResultCode.OK);
        Assert.assertEquals(client1.Log(Arrays.asList(new LogEntry("client1", "bbb"))), ResultCode.OK);
        scribe.Client client2 = makeNiftyClient();
        Assert.assertEquals(client2.Log(Arrays.asList(new LogEntry("client2", "ccc"))), ResultCode.OK);
    }

    @Test
    public void testMaxConnections() throws InterruptedException, TException
    {
        startServer(getThriftServerDefBuilder().limitConnectionsTo(1));
        scribe.Client client1 = makeNiftyClient();
        Assert.assertEquals(client1.Log(Arrays.asList(new LogEntry("client1", "aaa"))), ResultCode.OK);
        Assert.assertEquals(client1.Log(Arrays.asList(new LogEntry("client1", "bbb"))), ResultCode.OK);
        scribe.Client client2 = makeNiftyClient();
        try {
            client2.Log(Arrays.asList(new LogEntry("client2", "ccc")));
        } catch (TTransportException e) {
            // expected
        }
    }

    @Test
    public void testMaxConnections2() throws InterruptedException, TException
    {
        startServer(getThriftServerDefBuilder().limitConnectionsTo(1));
        scribe.Client client1 = makeNiftyClient();
        Assert.assertEquals(client1.Log(Arrays.asList(new LogEntry("client1", "aaa"))), ResultCode.OK);
        Assert.assertEquals(client1.Log(Arrays.asList(new LogEntry("client1", "bbb"))), ResultCode.OK);
        scribe.Client client2 = makeNiftyClient();
        try {
            client2.Log(Arrays.asList(new LogEntry("client2", "ccc")));
        } catch (TTransportException e) {
            // expected
        }
        // now need to make sure we didn't double-decrement the number of connections, so try again
        scribe.Client client3 = makeNiftyClient();
        try {
            client3.Log(Arrays.asList(new LogEntry("client3", "ddd")));
            Assert.fail();
        } catch (TTransportException e) {
            // expected
        }
    }
}
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